CN113906235A

CN113906235A - Support frame

Info

Publication number: CN113906235A
Application number: CN202080040198.XA
Authority: CN
Inventors: 大西正
Original assignee: Bridgestone Corp
Current assignee: Prologia Co ltd
Priority date: 2019-06-28
Filing date: 2020-01-28
Publication date: 2022-01-07
Anticipated expiration: 2040-01-28
Also published as: CN113906235B; EP3992490A1; JP2021008894A; WO2020261627A1; US20220316551A1; JP7187391B2; EP3992490A4; US11885389B2

Abstract

The present invention provides a stent having an excellent reinforcing effect. A holder (1) having an opening (A) is provided with a main body (10) and a reinforcing section (20). The main body (10) is made of resin. The main body (10) is provided with a pair of column sections (11) and a pair of connection sections (12, 13). The main body (10) is provided with a plate section (15) on at least one of the column sections (11). The plate portion (15) is provided with ribs (16-18) extending from the opening (A) side to the outer periphery of the bracket and protruding in the opening penetrating direction. The reinforcement unit (20) includes a reinforcement unit (21). The reinforcement part (21) forms the outer peripheral surface (f1) of the bracket (1). The reinforcement part (21) is disposed so as to overlap the ribs (16-18) when viewed in the opening penetrating direction.

Description

Support frame

Technical Field

The present invention relates to a bracket having an opening portion for mounting a vibration-proof member that is coupled to one of a vibration-generating side and a vibration-receiving side and that is capable of being coupled to the other of the vibration-generating side and the vibration-receiving side.

Background

As conventional stents, there are the following: the bracket is formed by joining a reinforcing material made of a glass fiber fabric to a synthetic resin material that is a main body of the bracket, and a plurality of reinforcing ribs extending along the outer peripheral surface of the bracket are formed on the outer peripheral surface of the bracket (see, for example, patent document 1). According to the stent described in patent document 1, the reinforcing effect on the stent can be improved by adding the reinforcing ribs to the reinforcing material.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open publication No. 2013-167264

Disclosure of Invention

Problems to be solved by the invention

However, the above-described conventional stent still has room for improvement in the reinforcing effect for the stent.

The invention aims to provide a stent with excellent reinforcing effect.

Means for solving the problems

The bracket of the present invention has an opening portion for mounting a vibration-proof member coupled to one of a vibration-generating side and a vibration-receiving side, and is capable of being coupled to the other of the vibration-generating side and the vibration-receiving side, wherein the bracket includes a bracket main body and a reinforcing portion, the bracket main body is made of resin, and the bracket main body includes: a pair of column parts arranged at intervals; and a pair of connection portions arranged between the pair of column portions and connecting the pair of column portions together, wherein the bracket main body includes a plate portion that extends in a direction in which the column portions extend and protrudes from the column portions in the direction in which the connection portions extend, the plate portion being provided with a rib that extends from the opening portion side to a bracket outer peripheral side and protrudes in a direction in which the opening portion penetrates, the reinforcement portion including a bracket outer peripheral side reinforcement portion that forms an outer peripheral surface of the bracket, and the bracket outer peripheral side reinforcement portion being arranged so as to overlap the rib when viewed in the direction in which the opening portion penetrates. The reinforcing effect of the stent of the invention is excellent.

In the stent of the present invention, it is preferable that the reinforcement portion includes a stent inner circumferential side reinforcement portion that forms an inner circumferential surface of the stent. In this case, the stent has a more excellent reinforcing effect.

In the stent of the present invention, it is preferable that the stent inner circumferential side reinforcing portion is a band-shaped reinforcing member, and is formed in a ring shape by joining both longitudinal ends of the reinforcing member together, and a seam formed by joining both longitudinal ends together is inclined with respect to a penetrating direction of the opening portion. In this case, the reinforcing effect with respect to the force in the circumferential direction along the inner peripheral surface of the holder and the force perpendicular to or inclined with respect to the inner peripheral surface of the holder, that is, the force bending the inner peripheral surface of the holder can be improved in the holder inner peripheral side reinforcing portion.

In the stent of the present invention, the seam intersects with a weld line formed in the stent main body. In this case, the weld line generated in the holder main body can be strengthened.

In the stent of the present invention, it is preferable that the seam is formed at a position not intersecting the weld line. In this case, the entire weld line can be reliably reinforced.

In the stent of the present invention, it is preferable that the stent outer circumferential-side reinforcing portion has a tapered portion that tapers toward the plate portion from the one connecting portion when viewed in the extending direction of the pillar portion. In this case, the stent has more excellent durability.

In the bracket according to the present invention, it is preferable that the plate portion includes two plate portions disposed with a space therebetween in a penetrating direction of the opening portion, and the bracket outer-peripheral-side reinforcing portion extends from the connecting portion between the two plate portions in an extending direction of the pillar portion. In this case, the stent has more excellent durability.

ADVANTAGEOUS EFFECTS OF INVENTION

According to the present invention, a stent having an excellent reinforcing effect can be provided.

Drawings

Fig. 1 is a perspective view schematically showing a stent according to embodiment 1 of the present invention.

Fig. 2 is a top view of the stent of fig. 1.

Fig. 3 is a front view of the stand of fig. 1.

Fig. 4A is a plan view showing an example of a reinforcing member constituting the stent outer circumferential-side reinforcing portion.

Fig. 4B is a plan view showing a state where the reinforcing member of fig. 4A is bent.

Fig. 5 is a side view of the stent of fig. 1.

Fig. 6A is a plan view showing an example of a reinforcing member constituting a stent inner circumferential reinforcing portion.

Fig. 6B is a plan view showing a state where the reinforcing member of fig. 6A is bent.

Fig. 7 is a sectional view a-a of fig. 3.

Detailed Description

Hereinafter, a stent according to some embodiments of the present invention will be described with reference to the accompanying drawings.

Fig. 1 is a perspective view schematically showing a stent 1 according to embodiment 1 of the present invention.

The bracket 1 has an opening a for mounting a vibration-proof member (illustration omitted) that is coupled to one of a vibration-generating side and a vibration-receiving side, and the bracket 1 can be coupled to the other of the vibration-generating side and the vibration-receiving side. The bracket 1 of the present embodiment is an engine mount bracket. Examples of the vibration generating side and the vibration receiving side include an engine and a vehicle body. Specifically, one of the vibration generating side and the vibration receiving side may be the engine. The vibration-proof member includes, for example, a vibration-proof member in which an inner tube and an outer tube are connected to each other by an elastic body (e.g., rubber). In the case of the vibration isolating member, the outer cylinder is attached to the bracket 1, and the inner cylinder is attached to the engine. In fig. 1, the vibration preventing member is omitted. In contrast, the other of the vibration generating side and the vibration receiving side may be the vehicle body. In this case, the bracket 1 can be fixed to the vehicle body as described later.

The stent 1 includes a stent main body 10 and a reinforcing portion 20. In the present embodiment, the reinforcing portion 20 is a composite material in which the strength is increased by containing a synthetic resin in the fibrous element, that is, a so-called Fiber Reinforced Plastic (FRP). Examples of the fiber-reinforced plastic include a prepreg. Examples of the fibrous elements include glass fiber fabrics, carbon fiber fabrics, metal fiber fabrics, organic fibers, fiber fabrics having a bending strength higher than that of the stent body 10, and materials other than these fabrics. As the fibrous element, a glass fiber fabric is preferably used. Examples of the fiber-reinforced plastic include unidirectional ud (uni direction) materials in which the fibrous elements having directionality contain a synthetic resin, and woven materials in which the fibrous elements being woven contain a synthetic resin. In the present embodiment, the bracket 1 can be formed integrally with the reinforcement portion 20 as an insert by injection molding, for example.

The holder main body 10 is made of resin. Examples of the resin include thermoplastic synthetic resins and thermosetting synthetic resins. As the synthetic resin, a thermoplastic synthetic resin is preferably used. Examples of such thermoplastic synthetic resins include nylon 66, nylon 6, and polypropylene.

The stent body 10 includes a pair of pillar portions 11 arranged at intervals, and a pair of connecting portions 12 and 13 arranged between the pair of pillar portions 11 and connecting the pair of pillar portions 11. In the present embodiment, the two pillar portions 11 of the bracket main body 10 are formed as plate portions extending in parallel to each other. In the present embodiment, the pillar portion 11 forms a side wall portion of the bracket 1 together with the reinforcing portion 20. In the present embodiment, when the bracket 1 is fixed to the vehicle body, the pillar portion 11 of the bracket main body 10 extends in the vertical direction. In the present embodiment, the coupling portions 12 and 13 of the stent body 10 constitute a bridge portion (hereinafter also referred to as "bridge portion 12") of the stent body 10 and a base portion (hereinafter also referred to as "base portion 13") of the stent body 10, respectively. In the present embodiment, the bridge portion 12 forms an upper wall portion of the stent 1 together with the reinforcing portion 20. In the present embodiment, the bridge portion 12 is located at an upper position when the bracket 1 is fixed to the vehicle body. In addition, in the present embodiment, the base portion 13 forms a lower wall portion of the bracket 1 together with the reinforcement portion 20. In the present embodiment, when the bracket 1 is fixed to the vehicle body, the base portion 13 is located at a lower position.

Here, the direction in which the opening portion penetrates (hereinafter also referred to as "opening portion penetrating direction") is the direction in which the opening portion a penetrates. In the present embodiment, the opening portion penetrating direction is a direction extending parallel to the central axis O1 of the opening portion a. The pillar portion extending direction is a direction in which the pillar portion 11 extends. In the present embodiment, the two pillar portions 11 extend parallel to each other. The coupling portions extend in the direction in which the coupling portions 12 and 13, that is, the bridge portions 12 and the base portions 13 extend. In the present embodiment, the bridge portion 12 and the base portion 13 extend parallel to each other.

The bracket body 10 includes a plate portion 15 in at least one of the pair of pillar portions 11, and the plate portion 15 extends in the extending direction of the pillar portion 11 and protrudes from the pillar portion 11 in the extending direction of the connecting portions 12 and 13. In the present embodiment, the plate portion 15 protrudes from the pillar portion 11, thereby forming a part of the bracket main body 10. Specifically, in the present embodiment, the plate portion 15 protrudes from the bracket outer-peripheral-side outer surface 11f1 of the pillar portion 11. In the present embodiment, the plate portion 15 extends over the entire extension direction of the pillar portion 11. In the present embodiment, the bracket body 10 includes two plate portions 15 at the two pillar portions 11, respectively. In the present embodiment, when the bracket 1 is fixed to the vehicle body, the extending direction of the pillar portion 11 is the vehicle vertical direction. That is, in the present embodiment, the plate portion 15 is configured to extend over the entire range of the pillar portion 11 in the vehicle vertical direction when the bracket 1 is fixed to the vehicle body. In the present embodiment, when the bracket 1 is fixed to the vehicle body, the extending direction of the bridge portion 12 and the base portion 13 (hereinafter also referred to as "connecting portion extending direction") is the horizontal direction. Specifically, the coupling portion extending direction may be at least one of the vehicle front-rear direction and the vehicle left-right direction (vehicle width direction). In the present embodiment, the extending direction of the coupling portion is the vehicle front-rear direction. That is, in the present embodiment, when the bracket 1 is fixed to the vehicle body, the two plate portions 15 of one of the two pillar portions 11 are configured to protrude further toward the vehicle front side than the pillar portion 11. In the present embodiment, the two plate portions 15 of the other of the two pillar portions 11 are configured to protrude further toward the vehicle rear side than the pillar portions 11.

In the present embodiment, the base portion 13 further includes a flange portion 14, and the flange portion 14 protrudes from the column portion 11 on an extension line in the extending direction of the coupling portion. The plate portion 15 is connected to the flange portion 14. As shown in fig. 2, the flange portion 14 has a fixing portion 19 for fixing the bracket 1 to the vehicle body. The fixing portion 19 is a seat portion having an opening portion through which a fastener such as a screw passes. In the present embodiment, as shown in fig. 2, the two plate portions 15 of one pillar portion 11 extend in the direction in which the connection portion extends so as to shield the fixing portion 19 in the opening penetrating direction when viewed in the pillar portion extending direction. In other words, in the present embodiment, as shown in fig. 2, the plate portion 15 extends to a position beyond the fixing portion 19 in the extending direction of the connecting portion when viewed in the extending direction of the pillar portion. In particular, as shown in fig. 3, in the present embodiment, the holder outer peripheral side edge line L15 of the plate portion 15 extends to a position that coincides with the holder outer peripheral side end edge 14e of the flange portion 14. In the present embodiment, as shown in fig. 3, the holder outer peripheral side edge line L15 is formed by the 1 st contour line L151 and the 2 nd contour line L152 continuous with the 1 st contour line L151 when viewed in the opening penetrating direction. In the present embodiment, the 1 st contour line L151 is a curve that continues with the bridge portion 12 at a curvature radius R15. The 2 nd contour line L152 is a straight line extending in the pillar portion extending direction. In the present embodiment, the plate portion 15 is connected to the flange portion 14 together with the pillar portion 11, thereby forming a part of the bracket main body 10. In the present embodiment, the flange portions 14 are provided on both sides of the base portion 13 in the extending direction. That is, in the present embodiment, the holder main body 10 has two flange portions 14.

The plate portion 15 is provided with

ribs

16, 17, 18 extending from the opening a side to the holder outer peripheral side and protruding in the opening penetration direction. In the present embodiment, the ribs 16 to 18 extend in the coupling portion extending direction, in other words, in the extending direction of the bridge portion 12 and the base portion 13. Referring to fig. 3, the rib 16 is provided in a region of the plate portion 15 adjacent to the bridge portion 12 (hereinafter also referred to as "bridge portion side adjacent region"). In the present embodiment, a plurality of ribs 16 are arranged at intervals in the pillar portion extending direction in the bridge portion side adjacent region. The rib 17 is provided in a region of the plate portion 15 adjacent to the bridge portion side adjacent region in the pillar portion extending direction and adjacent to the opening a (hereinafter also referred to as "opening portion side adjacent region"). In the present embodiment, a plurality of ribs 17 are arranged at intervals in the pillar portion extending direction in the opening portion side adjacent region. The rib 18 is provided in a region of the plate portion 15 adjacent to the region adjacent to the opening portion side in the pillar portion extending direction and adjacent to the base portion 13 (hereinafter also referred to as "base portion side adjacent region"). In the present embodiment, a plurality of ribs 18 are arranged at intervals in the pillar portion extending direction in the base portion side adjacent region. In the present embodiment, the rib 16 is a long rib having the longest length among the three ribs 16 to 18. In the present embodiment, the rib 17 is an intermediate rib having a length shorter than that of the rib 16. In the present embodiment, the rib 18 is a short rib having a length shorter than the rib 17 and the shortest length among the three ribs 16 to 18. In the present embodiment, the rib 18 is also configured as a plurality of ribs that become shorter in length as they become farther from the opening-side adjacent region. As shown in fig. 1, in the present embodiment, the

ribs

16, 17, 18 protrude from the column portion 11 and the plate portion 15, respectively. Specifically, the

ribs

16, 17, and 18 protrude from the bracket outer peripheral side outer surface 11f1 of the pillar portion 11 in the pillar portion extending direction, and protrude from the outer surface 15f1 of the plate portion 15 in the opening penetrating direction.

The reinforcing portion 20 includes a stent outer peripheral side reinforcing portion 21. As shown in fig. 1, the holder outer peripheral-side reinforcing portion 21 forms an outer peripheral surface f1 of the holder 1. In the present embodiment, the stent outer circumferential-side reinforcing portion 21 forms the outer circumferential surface f1 of the stent 1 together with the bridge 12 and the two pillar portions 11 of the stent main body 10. In the present embodiment, the holder outer-peripheral-side reinforcing portion 21 is formed of a band-shaped reinforcing member. Fig. 4A shows a band-shaped reinforcing member 210 as an example of a reinforcing member forming the stent outer-periphery-side reinforcing portion 21. The reinforcing member 210 has a bridge side portion 212 corresponding to the bridge 12 and two column side portions 211 corresponding to the columns 11. The reinforcing member 210 can bend both longitudinal ends 210e of the reinforcing member 210 in the same direction. Fig. 4B shows a state in which the reinforcing member 210 is bent. As shown in fig. 4B, the reinforcing member 210 can be bent into a U-shape with the bridge-side portion 212 as a base so that the two column-side portions 211 extend in the same direction. Thus, when the stent body 10 is injection-molded by using the reinforcing member 210 as an insert, the reinforcing member 210 forms the outer peripheral surface f1 of the stent 1 together with the bridge portions 12 and the two pillar portions 11 of the stent body 10, as shown in fig. 1.

Fig. 5 is a side view of the stand 1. In the present embodiment, the step portion 14s provided in the flange portion 14 is disposed between the two plate portions 15 of one column portion 11. The step portion 14s rises from the flange portion 14 in the column portion extending direction, and is formed integrally with the column portion 11 and the two plate portions 15. The bracket 1 has a shape symmetrical in the extending direction of the coupling portion. That is, in the present embodiment, the left-right side view of the cradle 1 is the same as the left side surface of the cradle 1. In the present embodiment, the longitudinal end 210e of the reinforcing member 210 does not extend to the stepped portion 14s, but the longitudinal end 210e of the reinforcing member 210 can be extended to the stepped portion 14 s. Therefore, the longitudinal end 210e of the reinforcing member 210, that is, the column portion extending direction end 21e2 of the stent outer circumferential-side reinforcing portion 21 can be extended to the stepped portion 14 s.

Further, as shown in fig. 3, the holder outer peripheral-side reinforcing portion 21 is disposed so as to overlap the ribs 16 to 18 when viewed in the opening penetration direction. Specifically, as shown in fig. 3, the opening penetration direction end 21e1 of the holder outer-peripheral-side reinforcing portion 21 is disposed so that the holder outer-peripheral-side reinforcing portion 21 overlaps the ribs 16 to 18 when viewed in the opening penetration direction. Further, referring to fig. 4A and 4B, in the present embodiment, the opening penetration direction end 21e1 of the holder outer circumferential-side reinforcing portion 21 is the width direction end 211e of the column portion side 211 of the reinforcing member 210. Referring to fig. 2, the opening penetration direction end 21e1 of the bracket outer peripheral-side reinforcing portion 21 extends to the plate portion 15 when viewed in the pillar portion extending direction.

Referring to fig. 3, in the bracket 1 of the present invention, the bracket body 10 includes a plate portion 15 at least at one of the two pillar portions 11, and the plate portion 15 includes ribs 16 to 18 extending from the opening a side of the bracket 1 to the bracket outer peripheral side. As a result, the effect of reinforcing the stent body 10 of the stent 1 of the present invention is improved as compared with the conventional stent. In the stent 1 of the present invention, the stent outer-peripheral-side reinforcing portions 21 are provided in the two pillar portions 11 and the bridge portion 12 of the stent body 10, and the stent outer-peripheral-side reinforcing portions 21 are arranged such that the stent outer-peripheral-side reinforcing portions 21 overlap the ribs 16 to 18 when viewed in the opening penetration direction. This further improves the reinforcing effect on the stent body 10. Thus, the reinforcing effect of the stent 1 of the present invention is excellent.

Specifically, when the bracket 1 is mounted on a vehicle, a large load is applied to the bridge portions 12 of the bracket body 10 in the vehicle vertical direction from the vibration isolating member. In contrast, in the present embodiment, the bridge portion 212 of the holder outer-peripheral-side reinforcing portion 21 reinforces the bridge 12 of the holder main body 10. Thus, in the present embodiment, the reinforcing effect against the load applied in the vehicle vertical direction, particularly the load applied to the vehicle upper side, is excellent. When the bracket 1 is mounted on a vehicle, a large load is applied to the pillar portion 11 of the bracket body 10 from the vibration isolating member toward the front or rear of the vehicle. In contrast, in the present embodiment, the column portion 211 of the holder outer circumferential-side reinforcing portion 21 reinforces the column 11 of the holder main body 10. Thus, in the present embodiment, the effect of reinforcing the load applied to the front side or the rear side of the vehicle is excellent. In particular, in the present embodiment, the plate portions 15 are provided on the two pillar portions 11, respectively. Thus, in the present embodiment, the reinforcing effect against the load applied in the vehicle front-rear direction is excellent. In the present embodiment, the plate portion 15 is connected to the flange portion 14 together with the pillar portion 11. Thus, in the present embodiment, the reinforcing effect for the stent main body 10 is more excellent. In the present embodiment, the plate portion 15 includes ribs 16 to 18 formed integrally with the column portion 11. This provides an excellent reinforcing effect against loads applied in the vehicle vertical direction, the vehicle front-rear direction, and the vehicle lateral direction (opening portion penetration direction). In the present embodiment, as shown in fig. 3, the holder outer peripheral-side reinforcing portion 21 is disposed so as to overlap the ribs 16 to 18 when viewed in the opening penetration direction. In the present embodiment, the column portion 211 of the bracket outer peripheral-side reinforcing portion 21 reinforces the column 11 of the bracket body 10 together with the plate portion 15. This provides a more excellent reinforcing effect against loads applied in the vehicle vertical direction, the vehicle front-rear direction, and the vehicle lateral direction. Therefore, the reinforcing effect of the stent 1 of the present embodiment is excellent.

Further, according to the present invention, the holder outer-peripheral-side reinforcing portion 21 may be overlapped so as to cover the entire rib 16 as a long rib when viewed in the opening penetrating direction. However, in the present embodiment, as shown in fig. 3, in the region of the plate portion 15 of the bracket main body 10, the column-side portion 211 of the bracket outer-peripheral-side reinforcing portion 21 is not actively disposed in a region where the column-side portion 211 overlaps the entire rib 16. In this case, the weight increase of the stent 1 that may occur due to the provision of the stent outer circumferential-side reinforcing portion 21 can be suppressed, and the reinforcing effect for the stent main body 10 can be improved.

In addition, according to the present invention, the reinforcement portion 20 includes a stent inner circumferential side reinforcement portion 22. The holder inner peripheral-side reinforcing portion 22 forms an inner peripheral surface f2 of the holder 1. In the present embodiment, the holder inner circumferential-side reinforcing portion 22 is provided on the inner circumferential surface of the holder main body 10. In the present embodiment, the inner peripheral surface of the stent body 10 is formed by a pair of pillar portions 11 and a pair of coupling portions 12 and 13. In this case, the stent 1 includes a stent outer peripheral side reinforcing portion 21 and a stent inner peripheral side reinforcing portion 22. This further improves the reinforcing effect of the stent 1 on the stent body 10, compared to a conventional stent having only one reinforcing portion. In this case, the reinforcing effect of the stent 1 is more excellent.

Further, according to the present invention, the stent inner circumferential-side reinforcing portion 22 is a band-shaped reinforcing member, and is formed into a ring shape by joining both longitudinal ends of the reinforcing member together, and the seam L22 formed by joining both longitudinal ends 220e together is preferably inclined with respect to the opening penetrating direction. In the present embodiment, the stent inner circumferential-side reinforcing portion 22 is a band-shaped reinforcing member. A band-shaped reinforcing member 220 is shown in fig. 6A as an example of a reinforcing member forming the stent inner circumferential side reinforcing portion 22. As shown in fig. 6A, the reinforcing member 220 has a parallelogram shape in plan view. As shown in fig. 6A, the two longitudinal ends 220e of the reinforcing member 220 are inclined ends that are inclined in parallel in the same orientation as each other in a plan view. The reinforcing member 220 can bend both longitudinal ends 220e of the reinforcing member 220 in the same direction. Fig. 6B shows a state in which the reinforcing member 220 is bent. As shown in fig. 6B, the reinforcing member 220 can be bent into a ring shape by bringing together both longitudinal ends 220e of the reinforcing member 220. As shown in fig. 6B, the joint L22 formed by joining the two longitudinal ends 220e is inclined with respect to the opening penetration direction (the central axis O1 of the opening a).

The vibration isolation device is generally provided with a bracket for mounting the vibration isolation member. When a large load is applied to a connecting portion (for example, an inner tube member connected to a bracket via rubber) of a vibration-proof member attached to an opening of the bracket, the connecting portion comes into contact with the bracket, and therefore the amount of movement thereof is restricted. Topologically, the load may be applied to the stent from the inside toward the outside of a hole (opening) formed in the stent, and such a case is often the case. Therefore, in the present embodiment, the reinforcing parts 20 are disposed on both the inner circumferential side and the outer circumferential side of the stent body 10.

On the other hand, depending on the condition of applying the load, there is a case where the reinforcing portion is provided across the entire inner peripheral surface of the holder main body. In this case, if a band-shaped reinforcing member is used as the reinforcing portion and both longitudinal ends of the band-shaped reinforcing member are butted against each other, the holder inner peripheral side reinforcing portion can be formed in an annular shape (cylindrical shape) along the inner peripheral surface of the holder main body. However, in this case, when the joint of the reinforcing member extends, for example, in parallel with the opening penetrating direction, the joint has no reinforcing effect on the force in the circumferential direction along the inner circumferential surface of the holder main body.

Then, in the present embodiment, as shown in fig. 1, the joint L22 of the reinforcing member 220 is inclined with respect to the opening penetration direction (the central axis O1 of the opening a). In this case, the holder inner circumferential-side reinforcing portion 22 can eliminate a portion having no reinforcing effect on the force in the circumferential direction along the inner circumferential surface f2 of the holder 1. In the present embodiment, as shown in fig. 6A, both lengthwise ends 220e of the belt-shaped reinforcing member 220 are obliquely cut, and the lengthwise ends 220e are brought together as shown in fig. 6B. In this case, the reinforcing effect on the force in the circumferential direction along the inner peripheral surface f2 of the stent 1 and the force perpendicular to or inclined with respect to the inner peripheral surface f2 of the stent 1, that is, the force bending the inner peripheral surface f2 of the stent 1 can be improved in the stent inner peripheral side reinforcing part 22.

In the stent 1 of the present invention, the seam L22 of the reinforcing member 220 can intersect the weld line Lw formed in the stent body 10.

For example, when the holder main body 10 is formed by injection molding or the like, as shown by the broken line in fig. 1, a weld line Lw extending along the center axis O1 of the opening a may be formed on the inner peripheral surface of the holder main body 10. For example, in the case where the weld line Lw extends parallel to the opening penetration direction, the weld line Lw may be a portion that has room for improvement with respect to the strength of the force along the circumferential direction of the inner peripheral surface of the holder main body 10. Then, as shown in fig. 6B, if the stent inner circumferential-side reinforcing portion 22 is configured such that the joint L22 of the reinforcing member 220 overlaps the weld line Lw and intersects the weld line Lw, the force generated in the weld line Lw in the circumferential direction of the inner circumferential surface of the stent body 10 and in the direction perpendicular to the weld line Lw can be received by the joint L22 (the two longitudinal ends 220e) of the reinforcing member 220. In this case, the weld line Lw generated in the stent body 10 can be strengthened.

In contrast, in the stent 1 of the present invention, the seam L22 of the reinforcing member 220 is preferably formed at a position not intersecting the weld line Lw.

As described above, the joint L22 of the reinforcing member 220 has no reinforcing effect on the force generated in the direction orthogonal to the joint L22. Therefore, even when the stent inner circumferential-side reinforcing portion 22 is formed by the band-shaped reinforcing member 220, it is considered that the reinforcing effect with respect to the weld line Lw is reduced at the joint L22 of the reinforcing member 220. Then, as shown in fig. 1, in the present embodiment, the joint L22 of the reinforcing member 220 is disposed at a position not intersecting the welding line Lw with a low strength, being offset from the welding line Lw. In this case, since the joint L22 of the reinforcing member 220 does not overlap the weld line Lw, the entire weld line Lw can be reliably reinforced by the stent inner circumferential-side reinforcing portion 22.

Further, as shown in fig. 2, according to the present invention, it is preferable that the holder outer circumferential-side reinforcing portion 21 has a distal end narrow portion 21a which is tapered as going from the bridge portion 12 to the plate portion 15 as viewed in the pillar extending direction. In this case, the stent has more excellent durability.

Specifically, as shown in fig. 2, the two opening penetration direction ends 21ea of the stent outer circumferential-side reinforcing portion 21, which form the distal end thin portion 21a of the stent outer circumferential-side reinforcing portion 21, are formed by opening penetration direction side contour lines L3 and L4, respectively, as viewed in the pillar portion extending direction. As shown in fig. 2, the two opening portion penetration direction side contour lines L3 and L4 are inclined at an angle α with respect to the holder width direction center line LO, respectively, when viewed in the pillar portion extending direction. As shown in fig. 2, the angle α is an acute angle that is inclined toward the stent width direction center line LO as going from the post 11 to the bridge 12 as viewed in the post extending direction. The angle α is preferably 60 ° or less. More preferably 10 ° or more and 45 ° or less. More preferably 10 ° or more and 40 ° or less. The angle α can be set as appropriate according to the shape, material, and purpose of use of the stent 1.

As described above, the stent 1 can be manufactured by a method of injection molding using a reinforcing member made of fiber-reinforced plastic such as prepreg as an insert.

However, generally, the rigidity of the reinforcing member composed of fiber reinforced plastic is higher than the rigidity of the base resin forming the stent main body 10. Therefore, when a large load is input to the insert-molded stent 1, stress concentration occurs in the vicinity of the end portion of the reinforcing portion 20 (the boundary line between the base resin forming the stent body 10 and the fiber member forming the reinforcing portion 20) with respect to the base resin, and it is considered that an effective reinforcing effect cannot be obtained.

In contrast, in the present embodiment, as shown in fig. 2, since the distal thin portion 21a that becomes narrower as going from the bridge 12 to the plate portion 15 is formed in the holder outer-peripheral-side reinforcing portion 21 as viewed in the column portion extending direction, mainly the two opening penetrating direction ends 21ea (the opening penetrating direction side contour lines L3 and L4) of the distal thin portion 21a of the holder outer-peripheral-side reinforcing portion 21 are inclined with respect to the tensile stress generating direction (in the present embodiment, the extending direction of the bridge 12). In this case, by extending (inclining) the extending direction length of the opening penetrating direction end of the holder outer peripheral-side reinforcing portion 21 in the extending direction of the bridge portion 12 at the opening penetrating direction end 21ea of the distal end narrow portion 21a, the generation site of the stress caused by the difference in rigidity between the base resin (holder main body 10) and the reinforcing portion 20 can be dispersed. This prevents stress concentration from occurring in the boundary line between the stent outer circumferential-side reinforcing portion 21 and the stent body 10 with respect to the stent body 10, and an effective reinforcing effect can be obtained. Further, as shown in the present embodiment, when a plurality of plate portions 15 are arranged as the plate portions 15 with intervals in the opening penetration direction, it is preferable that the opening penetration direction end 21ea of the distal end slender portion 21a is provided on both sides of the opening penetration direction end of the holder outer periphery-side reinforcing portion 21. However, according to the present invention, the opening portion penetrating direction end 21ea of the distal slender portion 21a may be any one of the two opening portion penetrating direction side contour lines L3 and L4.

In the bracket 1 of the present invention, it is preferable that the plate portion 15 includes two plate portions 15 arranged with a space therebetween in the opening penetrating direction, and the bracket outer-peripheral-side reinforcing portion 21 extends further from the bridge portion 12 between the two plate portions 15 in the column portion extending direction. In this case, the stent has more excellent durability.

In the present embodiment, as shown in fig. 1, the pillar side portion 211 of the bracket outer-peripheral-side reinforcing portion 21 extends from the distal end thin portion 21a in the pillar extending direction between the two plate portions 15. In the present embodiment, the column-side portion 211 is an extension portion connected to the distal end narrow portion 21a of the holder outer circumferential-side reinforcing portion 21. In this case, the stent has more excellent durability.

As shown in fig. 2, in the present embodiment, the opening penetration direction width W1 of the bridge 12 is largest at the extending direction end 12e of the bridge 12 when viewed in the column extending direction. In the present embodiment, the extending direction end 12e of the bridge portion 12 coincides with the holder inner peripheral side surface 11f2 of the post portion 11 in the coupling portion extending direction.

Specifically, in the present embodiment, as shown in fig. 2, the opening penetration direction width W1 of the bridge portion 12 becomes narrower from the extending direction end 12e of the bridge portion 12 toward the extending direction center C of the bridge portion 12 as viewed in the column extending direction. In this case, the strength of the connecting portion between the pillar portion 11 and the bridge portion 12 in the stent main body 10, in which stress is easily concentrated when a load is input to the stent 1, can be secured, and the increase in weight can be suppressed by narrowing the center C in the extending direction of the bridge portion 12.

In detail, in the present embodiment, as shown in fig. 2, it is preferable that one of the opening portion penetrating direction side contour lines L1 and L2 forming the opening portion penetrating direction side contour of the bridge portion 12 is a curved line that is recessed toward the other of the opening portion penetrating direction side contour lines L1 and L2 as going from the extending direction end 12e of the bridge portion 12 toward the extending direction center C of the bridge portion 12 when viewed in the pillar portion extending direction. In the present embodiment, the 1 st opening penetrating direction side contour line L1 is a curved line that is recessed toward the 2 nd opening penetrating direction side contour line L2 as going from the extending direction end 12e of the bridge 12 toward the extending direction center C of the bridge 12. In this case, the opening portion penetration direction width W1 of the bridge portion 12 smoothly decreases along the 1 st opening portion penetration direction side contour line L1, and thus the stress concentration that may occur on the 1 st opening portion penetration direction side contour line L1 can be suppressed, and the increase in weight can be suppressed.

In detail, in the present embodiment, as shown in fig. 2, it is preferable that the other one of the opening portion penetrating direction side contour lines L1 and L2 forming the opening portion penetrating direction side contour of the bridge portion 12 is also a curved line recessed toward the one of the opening portion penetrating direction side contour lines L1 and L2 as going from the extending direction end 12e of the bridge portion 12 toward the extending direction center C of the bridge portion 12 as viewed in the pillar portion extending direction. In the present embodiment, the 2 nd opening penetrating direction side contour line L2 is a curve that is recessed toward the 1 st opening penetrating direction side contour line L1 as going from the extending direction end 12e of the bridge 12 toward the extending direction center C of the bridge 12. In this case, since the opening portion penetrating direction width W1 of the bridge portion 12 smoothly decreases along the 2 nd opening portion penetrating direction side contour line L2, it is possible to suppress stress concentration that may occur on the 2 nd opening portion penetrating direction side contour line L2 and to suppress an increase in weight.

In the present embodiment, it is preferable that the recessed opening portion penetration direction depth D1 of the 1 st opening portion penetration direction side contour line L1 of the bridge portion 12 is different from the recessed opening portion penetration direction depth D2 of the 2 nd opening portion penetration direction side contour line L2 as viewed in the pillar portion extending direction.

In the case where the reinforcing

members

210, 220 are provided as inserts and the stent main body 10 is injection-molded, as described above, the weld line Lw may be generated in the stent main body 10. When an excessive load is applied to the stent 1, the weld line Lw may become a starting point for peeling the stent body 10. Therefore, the weld line Lw is preferably formed so as to avoid a position where a large load is applied, assuming the use condition of the bracket 1. However, in design and structure, there is a case where the position of the weld line Lw is uniquely determined in the case where there is a restriction on the injection gate position. In this case, since there is a limit to the change of the injection gate position, it is difficult to control the weld line Lw to avoid stress concentration.

For example, as shown in fig. 7, when the weld line Lw extends along the coupling portion extending direction as viewed in the pillar portion extending direction, if the opening penetration direction depth D1 of the 1 st opening penetration direction side contour line L1 is different from the opening penetration direction depth D2 of the 2 nd opening penetration direction side contour line L2 as shown in fig. 2, the weld line Lw can be formed so as to be closer to the opening penetration direction side contour line L1 or L2 on the shallower side of the opening penetration direction depths D1 and D2. That is, by adjusting the two opening penetration direction depths D1 and D2, the position of the weld line Lw can be controlled. Therefore, by appropriately adjusting the opening penetration direction depths D1 and D2, the weld line Lw can be kept away from the position where a large load is applied to the bracket 1.

Referring to fig. 7, in the stent of the present embodiment, when the opening penetration direction depths D1 and D2 are made equal, the external force applied to the bridge 12 of the stent main body 10 normally acts along the stent width direction center line LO. Here, the holder width direction center line LO is a straight line parallel to the extending direction of the coupling portion and passing through the center of the opening portion penetrating direction width of the bridge portion 12.

In contrast, in the present embodiment, the maximum value D1max of the opening penetration direction depth D1 is smaller than the maximum value D2max of the opening penetration direction depth D2. In this case, as shown in fig. 7, the weld line Lw tends to be formed at a depth D1 in the opening penetration direction on the shallower side. That is, according to the present embodiment, as shown in fig. 7, the weld line Lw is formed closer to the 1 st opening portion penetration direction side contour line L1 of the shallow opening portion penetration direction depth D1. In this case, for example, even if stress concentration along the holder width direction center line LO occurs in a load input to the holder 1, the weld line Lw is displaced from the holder width direction center line LO in the opening portion penetration direction, and therefore, stress concentration that may occur along the weld line Lw can be suppressed. Therefore, according to the present embodiment, the stent having more excellent durability is obtained.

As shown in fig. 3, in the present embodiment, the base portion 13 further includes a flange portion 14, and the flange portion 14 protrudes from the column portion 11 on an extension line in the extending direction of the connection portion. As described above, in the present embodiment, the flange portion 14 and the plate portion 15 are coupled together. In this case, the stent 1 having more excellent durability is obtained. In the present embodiment, the bracket body 10 includes two flange portions 14, and the flange portions 14 are provided so as to correspond to the two plate portions 15. In this case, the stent has more excellent durability.

The above description is only for the description of the embodiment of the present invention, but various modifications can be made within the scope of the claims. For example, the reinforcing portion 20 is not limited to being formed of a fiber-reinforced plastic such as a prepreg. According to the present invention, the reinforcing part 20 may be injection molded together with the holder main body 10 using a Fiber Reinforced Thermoplastic (FRTP) in which the fibrous elements are mixed with a thermoplastic resin. The shapes of the reinforcing

members

210 and 220 can be appropriately changed in accordance with the shapes of the outer peripheral surface f1 and the inner peripheral surface f2 of the bracket 1. The opening a of the stent 1 of the present embodiment has a rectangular shape when viewed in the opening penetrating direction, but may have an elliptical shape or a perfect circular shape when viewed in the opening penetrating direction.

Description of the reference numerals

1. A support; 10. a stent body; 11. a pillar portion; 11f1, outer side surface of column part on outer periphery side of bracket; 12. bridge parts (coupling parts); 13. a base (connecting portion); 14. a flange portion; 15. a plate portion; 15f1, the outer surface of the plate portion; 16. ribs (long ribs); 17. ribs (intermediate ribs); 18. ribs (short ribs); 20. a reinforcement section; 21. a bracket outer peripheral side reinforcement portion; 21a, a distal end thin portion of the stent outer peripheral-side reinforcing portion; 21e1, an opening penetrating direction end of the bracket outer periphery side reinforcing part; 21e2, and a column extending direction end of the bracket outer peripheral side reinforcing part; 210. a reinforcing member; 211. a column side portion of the reinforcing member; 211e, a width direction end of a column side portion of the reinforcing member; 212. a bridge-side portion of the reinforcing member; 22. a stent inner peripheral side reinforcement portion; 220. a reinforcing member; 220e, longitudinal ends of the reinforcing member; f1, the outer peripheral surface of the bracket; f2, the inner circumferential surface of the bracket; l22, seams; lw, weld line.

Claims

1. A bracket having an opening portion for mounting a vibration-proof member coupled to one of a vibration-generating side and a vibration-receiving side, the bracket being capable of being coupled to the other of the vibration-generating side and the vibration-receiving side, wherein,

the bracket is provided with a bracket main body and a reinforcing part,

the holder main body is made of resin,

further, the stent main body includes: a pair of column parts arranged at intervals; and a pair of coupling portions arranged between the pair of pillar portions and coupling the pair of pillar portions together,

the bracket body includes a plate portion extending in the extending direction of the pillar portion and protruding from the pillar portion in the extending direction of the connecting portion, in at least one of the pair of pillar portions, and a rib extending from the opening portion side to the bracket outer peripheral side and protruding in the penetrating direction of the opening portion is provided in the plate portion,

the reinforcing portion includes a stent outer peripheral side reinforcing portion,

the holder outer peripheral-side reinforcing portion forms an outer peripheral surface of the holder,

the holder outer-peripheral-side reinforcing portion is disposed so as to overlap the rib when viewed in the direction in which the opening extends.

2. The stent of claim 1,

the reinforcing portion includes a stent inner peripheral side reinforcing portion,

the holder inner peripheral side reinforcing portion forms an inner peripheral surface of the holder.

3. The stent of claim 2,

the stent inner circumferential side reinforcing portion is a band-shaped reinforcing member, and is formed into a ring shape by joining both longitudinal direction ends of the reinforcing member together,

the seam formed by joining the two longitudinal ends is inclined with respect to the penetrating direction of the opening.

4. The stent of claim 3,

the seam intersects with a weld line formed in the stent body.

5. The stent of claim 3,

the seam is formed at a position not intersecting the weld line.

6. The stent of any one of claims 1 to 4,

the bracket outer-peripheral-side reinforcing portion has a tapered portion that tapers toward the plate portion from the one connecting portion, as viewed in the extending direction of the pillar portion.

7. The stent of any one of claims 1 to 6,

the plate portion includes two plate portions arranged with a space therebetween in a penetrating direction of the opening portion,

the bracket outer-peripheral-side reinforcing portion extends from the connecting portion further in the extending direction of the pillar portion between the two plate portions.